View source for Portulaca smallii

{{Treatment/ID
|accepted_name=Portulaca smallii
|accepted_authority=P. Wilson in N. L. Britton et al.
|publications={{Treatment/Publication
|title=in N. L. Britton et al., N. Amer. Fl.
|place=21: 335. 1932
|year=1932
}}
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Portulacaceae;Portulaca;Portulaca smallii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Portulacaceae]]</div><div class="higher-taxon"><small>genus</small>[[Portulaca]]</div><div class="higher-taxon"><small>species</small>[[Portulaca smallii]]</div></div>
|volume=Volume 4
|mention_page=page 496, 497
|treatment_page=page 500
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism duration;whole_organism growth form"><b>Plants </b>annual;</span> <span class="statement" id="st-d0_s1" data-properties="root texture">roots fibrous.</span> <span class="statement" id="st-d0_s2" data-properties="stem orientation;stem some measurement"><b>Stems </b>prostrate to suberect, 2–15 cm;</span> <span class="statement" id="st-d0_s3" data-properties="trichome prominence">trichomes conspicuous at nodes and in inflorescence.</span> <span class="statement" id="st-d0_s4" data-properties="leaf-blade shape;leaf-blade shape;leaf-blade length;leaf-blade width;apex shape"><b>Leaf-</b>blades linear to lanceolate, terete to hemispheric, 4–15 × 0.5–3 mm, apex subacute to subobtuse;</span> <span class="statement" id="st-d0_s5" data-properties="leaf shape;leaf atypical quantity;leaf quantity">involucrelike leaves 7–10 (–12).</span> <span class="statement" id="st-d0_s6" data-properties="flower diameter"><b>Flowers </b>6–12 mm diam.;</span> <span class="statement" id="st-d0_s7" data-properties="petal size;apex coloration;apex shape;apex length;apex width;apex shape">petals medium pink to almost white, oblongelliptic, 3–5 × 1.5 mm, apex acute;</span> <span class="statement" id="st-d0_s8" data-properties="stamen quantity">stamens 8–13;</span> <span class="statement" id="st-d0_s9" data-properties="stigma quantity">stigmas 4–5.</span> <span class="statement" id="st-d0_s10" data-properties="capsule shape;capsule diameter"><b>Capsules </b>subglobose, 2–3.5 mm diam.</span> <span class="statement" id="st-d0_s11" data-properties="seed coloration;seed coloration;seed shape;seed shape;seed some measurement"><b>Seeds </b>black or leaden, elongate, flattened, 0.6–0.8 mm;</span> <span class="statement" id="st-d0_s12" data-properties="">surface cells stellate, tuberculate.</span> <span class="statement" id="st-d0_s13" data-properties="surface cell arrangement or shape;surface cell relief;2n chromosome quantity">2n = 18.</span><!--

-->{{Treatment/Body
|phenology=Flowering late spring–early fall.
|habitat=Shallow sandy soils of granitic outcrops
|elevation=200-300 m
|distribution=Ga.;N.C.;S.C.;Va.
|discussion=<p>Portulaca smallii has been considered a species of recent origin on granite outcrops. D. J. Cotter and R. B. Platt (1959) suggested that it is derived from P. pilosa, particularly considering the chromosome number of 2n = 16 reported by E. Steiner (1944) equaling that of P. pilosa. J. F. Matthews et al. (1994) examined that population of P. smallii researched by Steiner and found the chromosome number to be 2n = 18. This new determination, along with the lighter petal color, larger seed size, and distinct habitat, separates this species from P. pilosa.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Portulaca smallii
|authority=P. Wilson in N. L. Britton et al.
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Portulacaceae
|phenology=Flowering late spring–early fall.
|habitat=Shallow sandy soils of granitic outcrops
|elevation=200-300 m
|distribution=Ga.;N.C.;S.C.;Va.
|reference=None
|publication title=in N. L. Britton et al., N. Amer. Fl.
|publication year=1932
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V4/V4_1018.xml
|genus=Portulaca
|species=Portulaca smallii
|2n chromosome quantity=18
|apex coloration=white
|apex length=3mm;5mm
|apex shape=acute;oblongelliptic;subacute;subobtuse
|apex width=1.5
|capsule diameter=2mm;3.5mm
|capsule shape=subglobose
|flower diameter=6mm;12mm
|leaf atypical quantity=10;12
|leaf quantity=7;10
|leaf shape=involucrelike
|leaf-blade length=4mm;15mm
|leaf-blade shape=linear;lanceolate terete
|leaf-blade width=0.5mm;3mm
|petal size=medium
|root texture=fibrous
|seed coloration=leaden;black
|seed shape=flattened;elongate
|seed some measurement=0.6mm;0.8mm
|stamen quantity=8;13
|stem orientation=prostrate;suberect
|stem some measurement=2cm;15cm
|stigma quantity=4;5
|surface cell arrangement or shape=stellate
|surface cell relief=tuberculate
|trichome prominence=conspicuous
|whole_organism duration=annual
|whole_organism growth form=plant
}}<!--

-->[[Category:Treatment]][[Category:Portulaca]]